It's of course possible that he might, but several things make me feel like he should have been given a chance to prove himself: * He made a public statement clarifying his personal beliefs would not affect his work at Mozilla. * He is being accused of discriminating at Mozilla, while as far as we know, no such thing has happened (yet). * Given the amount of backlash he has suffered because of his 6 year old contribution to some campaign, I'm sure he's smart enough to handle matters in which he might be strongly biased by delegating them to someone else.
I was outraged when his contribution came to light a few years ago, but I honestly feel like he's getting too harsh a treatment for what he did.